Spring + Hibernate SessionFactory + AbstractRoutingDataSource

Question

I have an Spring+Hibernate/Flex application that needs to switch dynamically between database schemas. To accomplish that I implemented a AbstractRoutingDataSource following

Answer 1

It's clear that selection of a particular DataSource actually happens when AbstractRoutingDataSource.getConnection() is called, i.e. when transaction-bound Hibernate Session is created. In your case it happens when you enter a @Transactional method.

Thus, you can't switch schemes inside a transaction. You have to execute separate transactions against different schemes. To execute several transactions inside the same method you can use programmatic transaction management (TransactionTemplate) instead of @Transactional.